Inspired by recent game-play.
You are Quiet. Perhaps you speak softly and carry a large sword; or perhaps you don’t have much to say, because you know words only cause trouble. Your quiet may give you gravity, or it may cause others to assume you are not as smart as you actually are. Being Quiet may simply make you hard to hear, and it may make others assume you are being passive-aggressive; or it may cause others to listen attentively when you do speak, and it may make you adept at conveying secrets.
Sounds like some people I know in real life.